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GH2901 Superalloy (GH901 / Incoloy 901 / N09901 / 2.4662) is a Fe-Ni-Cr based precipitation-hardening wrought superalloy that achieves its exceptional strength through γ′ [Ni₃(Ti,Al)] precipitation during controlled aging heat treatment. The alloy contains approximately 40–45% nickel, 11–14% chromium, 5.0–6.5% molybdenum, 2.8–3.1% titanium, and aluminum (≤0.35%), with boron additions (0.01–0.02%) for grain boundary strengthening. This GH2901 nickel base superalloy delivers high yield strength and endurance strength below 650°C (1200°F), good oxidation resistance below 760°C (1400°F), and long-term microstructural stability. Its high temperature nickel alloy characteristics—combined with cost advantages over higher-alloyed nickel-based superalloys—make it the preferred material for aero-engine turbine discs, compressor discs, gas turbine components, high-temperature fasteners, industrial furnace equipment, and petrochemical industry applications. Available in a full range of product forms including GH2901 round bar, plate, sheet, pipe, tube, wire, and forgings.
Composition | C | Si | Mn | P | S | Cr | Ni | Mo | Al | Ti | B | Cu | Bi | Pb |
Min | 0.02 | \ | \ | \ | \ | 11.00 | 40.00 | 5.00 | \ | 2.80 | 0.01 | \ | \ | \ |
Max | 0.03 | 0.40 | 0.50 | 0.02 | 0.008 | 14.00 | 45.00 | 6.50 | 0.30 | 3.10 | 0.02 | 0.20 | 0.0001 | 0.0001 |
Rigidity | Tensile strength | Yield strength | Elongation |
200 | ≥1034MPa | ≥689MPa | ≥12% |
Density | Melting points | Specific heat | Magnetism | Resistivity | Thermal conductivity | Linear expansivity |
8.4g/cm3 | 1415-1450℃ | 0.41J/(Kg.℃） | \ | 1.073Ω·mm²/m(300℃) | 12.0W/(m.k)(300℃) | 15.5×10-6/K(20-700℃) |
The performance characteristics of GH2901 Superalloy make it suitable for high temperature engineering applications. Through precipitation hardening treatment, the alloy achieves improved strength compared with conventional nickel alloys.
GH2901 Nickel Alloy provides:
High temperature tensile strength for elevated service conditions.
Good creep resistance for long-term loading environments.
Stable metallurgical performance after heat treatment.
Resistance to thermal fatigue caused by repeated heating and cooling cycles.
The alloy is generally supplied in heat treated conditions to achieve the required mechanical properties. Proper solution treatment and aging processes are important factors affecting the final performance of GH2901 components.
GH2901 Superalloy is mainly selected for components where high temperature strength, fatigue resistance, and long-term structural stability are required. Unlike corrosion-resistant nickel alloys that focus on chemical environments, GH2901 Nickel Alloy is typically used for mechanically loaded parts operating under elevated temperatures.
Its precipitation hardening characteristics allow engineers to achieve improved strength retention after heat treatment, making it suitable for aerospace structures, turbine systems, and other demanding high temperature applications.
1. Aerospace and Aircraft Engine Components
In aerospace manufacturing, GH2901 for Aerospace applications are mainly related to components requiring reliable mechanical performance under high temperature and cyclic loading conditions.
Aircraft engine components are exposed to complex environments including vibration, thermal expansion, and repeated temperature changes. GH2901 Nickel Alloy provides the necessary strength stability for parts where dimensional control and fatigue resistance are critical.
Typical aerospace applications include:
Engine structural components
High temperature fastening components
Precision forged aerospace parts
Other load-bearing components exposed to elevated temperatures
For aerospace manufacturers, GH2901 Forging is often preferred because forged structures provide improved mechanical reliability and better resistance against stress concentration compared with conventional manufacturing methods.
2. Turbine Components and Power Generation Equipment
For gas turbine and power generation systems, GH2901 for Turbine Components is selected when components must maintain strength during continuous high temperature operation.
Gas turbine parts experience long-term exposure to thermal stress and mechanical loading. Materials with insufficient creep resistance may gradually deform, affecting equipment efficiency and service life.
Applications may include:
Turbine rotating components
High temperature structural parts
Turbine support components
Power generation equipment parts
The advantage of High Temperature Nickel Alloy materials such as GH2901 is their ability to maintain stable mechanical properties after prolonged exposure to elevated temperatures, helping reduce maintenance frequency and improve component durability.
3. High Temperature Components and Industrial Equipment
Beyond aerospace applications, GH2901 for High Temperature Components can also be considered for industrial equipment operating under severe thermal conditions.
In industrial furnace systems and thermal processing equipment, components may experience repeated heating and cooling cycles. These conditions require materials with good thermal stability and resistance to deformation.
Typical applications include:
Furnace components
Heat treatment equipment parts
High temperature fixtures
Precision industrial components
As a Precipitation Hardening Superalloy, GH2901 provides a balance between strength and processing flexibility, making it suitable for customized high temperature components where conventional alloys may not meet service requirements.
4. Forging and Precision Manufactured Components
Many engineering applications require not only the correct alloy grade but also controlled manufacturing processes. GH2901 Forging is widely considered for critical components because forging improves material consistency and helps achieve better mechanical performance.
Mono Group supplies GH2901 Round Bar, forged materials, and customized nickel alloy components according to customer specifications. Processing conditions such as heat treatment, machining allowance, and final dimensions can be adjusted according to component requirements.
For customers sourcing GH2901 Superalloy Supplier solutions, selecting a supplier with knowledge of both material characteristics and manufacturing requirements is essential for achieving stable final component performance.
What makes GH2901 Superalloy different from conventional nickel alloys?
GH2901 Superalloy is designed for applications requiring high strength retention at elevated temperatures. Compared with general nickel alloys, its precipitation hardening characteristics provide improved mechanical stability under long-term thermal and loading conditions.
How does heat treatment affect GH2901 Superalloy performance?
Heat treatment plays an important role in developing the required mechanical properties of GH2901 High Temperature Alloy. Solution treatment and aging processes help achieve the strength level required for demanding engineering applications.
Can Mono Group provide customized GH2901 Alloy supply?
Yes. Mono Group supports customized GH2901 Nickel Alloy supply, including specific dimensions, forged components, machining requirements, and export documentation. Customers can send drawings or specifications to info@monokj.com for evaluation and quotation.
Many engineering applications require not only the correct alloy grade but also controlled manufacturing processes. GH2901 Forging is widely considered for critical components because forging improves material consistency and helps achieve better mechanical performance.
Mono Group supplies GH2901 Round Bar, forged materials, and customized nickel alloy components according to customer specifications. Processing conditions such as heat treatment, machining allowance, and final dimensions can be adjusted according to component requirements.
For customers sourcing GH2901 Superalloy Supplier solutions, selecting a supplier with knowledge of both material characteristics and manufacturing requirements is essential for achieving stable final component performance.
